Yes, there is no maximum age for breeding. I was told by a knowledgeable keeper that it's not a good idea to use an elderly female for breeding, especially if it has not been used for breeding for many years, but Tilly had been in the country since before the last war, with no contact with males and no eggs laid that they were aware of. She has laid for the past 8 - 9 years with no problems, in fact she is trying to dig up my decking as I type lol. Her first baby, Albert (female) is now coming up to 400 grams, so testament to it not always being a problem ;) I would say what you do need no matter what the age, is lots of space and not to keep them penned, to avoid stress. Another thing to consider is the cost of breeding. With introduction of new fees and regulations from DEFRA recently, it's something that a lot of breeders will currently be thinking twice about in the future. I have to say that I have never made any money from my little ones, once the costs are taken into consideration ;)